PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/17-02:42:40
G01     320.1          14.7                3.2 +/-    2.38       7.9 +/-    2.38  0.140 / 0.290
G08     259.4          15.1                4.5 +/-   16.83      11.1 +/-   16.83  0.130 / 0.300
G10     73.8           55.0               -1.6 +/-   18.52      -1.9 +/-   18.52  0.070 / 0.090
G11     305.7          21.8               -0.1 +/-   18.94      -0.1 +/-   18.94  0.070 / 0.110
G14     282.6          68.8               -2.4 +/-   18.33      -2.6 +/-   18.33  0.040 / 0.060
G18     307.8          37.7              -14.0 +/-   20.05     -21.2 +/-   20.05  0.030 / 0.060
G20     77.6           62.0                0.9 +/-   18.59       1.0 +/-   18.59  0.170 / 0.270
G27     226.9          11.3                4.1 +/-   17.44      11.2 +/-   17.44  0.170 / 0.230
G31     175.0          39.7                2.8 +/-   17.72       4.1 +/-   17.72  0.080 / 0.240
G32     4.4            69.1               -2.7 +/-   18.46      -2.8 +/-   18.46  0.090 / 0.240